Process for manufacturing the hooks intended to support the filaments of electric incandescent lamps.



. P. G. TRIQUET. PROCESS POR MANUFACTURING THE HooKs INTBNDBD To SUPPORT THE HLAMENTS 0T ELECTRIC INGANDESGENT LAMPS.

APPLIOATIN FILED rEB.4, 1910.

967,084. I Patn-'ed Aug. 9,1910.

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n TED srAs Arun EAUL GABRIEL TErcUET, orrAEIs, FRANCE, AssrGNoE To PEEEECTIONNEMENTS AUX LAMPES A EILAMENCrs METALLIQUEs, sooiE'rE ANONYME, 0E BRUSSELS, BELGIUM.

.PROCESS YPEOR MANUFACTURING THE HOOKS INTENDEDTO SUPPORT THE EILAMENTS oF y ELECTRIC iNcANnEscENT IlAiviPs.

Patented Aug. e, 191e.

Application led February 4, 1910. Serial 1No. 542,114.

To all whom 'it may concern:

B e'it known that I, PAUL GAlRrEL TRI- QUET, a citizen of the Fren h Republic, and

'resident of Paris, France, ave invented a fitting the hooks iri'tended to Support the filaments of electric incandescent lamps and more especially of those hooks which have been manufactured asdescribed and claimed in my prior patent application, Serial N0. 462160, dated 11thv Nov. 1908.

' In order to render the explanations given 'hereafter as clear as possible I have shown in the accompanying drawings, given by way of example, a machine for uniting into bundles the thin wires intended to receive the hooks and the.. different phases of the mounting of said hooks.

In these drawings Figure tive view'of the machine for joining the wires orthreads intended to serye as sup ports for the hooks. Figs. 2, 8, 4, 5 and 6 are perspective views showing the various phases 'of the fitting or mounting oit the hooks.

It is a 'well known fact that one has already provided the end of the central pillar with a glass rod having a very small di ameter-and which is` int-roduced into the Crucible at the moment where the carrier is connected with the bulb of the lamp. This thin rod thus serves as a pivot and holds the carrier in the center of the bulb.

As after the production of the vacuum the end of this rod is soldered to the point of the lamp, a spring a (Figs. 4, 5 and 6) has been interposed between thcv central rod and vthe thin pivot rodfcr the purpose or' pro viding 'for the drawbacks .which would result from the expansions vand Lkcontractions produced by the successive heating and cool.- ing of the lamp.

It is readily7 understood that the manufacture of the head to which the supports or hooks have been secured until now, the individual insertion 'or pricking of the carriers or hooks around this head as well as the inscrtion or pricking of the springr a into the 1 is a perspecend of the central rod require a long and costly work. i

The improvements which form the subject riattel,r of this invention have fortheir object to simplify the said Work of fitting up as will/be presently described. ABesides, these improvements have still for their oberties of the hooks.

which is intended to u-nite or joint into a bundle, by means of the electric arc, the thin wires or threads intended to receive the hooks and the thicker wire or thread intended to form the spring of the thin pivot rod. f This machine comprises pins on which are slid the bobbins B containing the thin thread or wire and the number of which lis equal vto the number of filaments which will be present in the lamp, and besides in the center the bobbin C containing the thicker wire or thread intended to form the spring a,

The standard l) carries a. series of tubes E the number ofwhich is equal to that of the bobbins and which are connected with a funnel P.

Gr ,designates a second funnel provided ]ectto iiicrease the elastic or yielding propwith a handle which is connected with one l of the poles of a supply of electric current. H is a block of carbon connected withl the 1other pole of said supply of electric current.

The wires or threads which it is intended to join into' a bundle are each pushed into one of the tubes E and pass together out of the end of the funnel P. They are hereafter drawn out and inserted into the funnel Gr "and are caused to project from thc end of on the soldered end of the bundle so as toV cause. the thread-s or wires of the latter to advance through the funnel (d and the tubes E on a length which is equal to that which it is desired to give/the bundle. The bundle is hereafter cut by means'of a. pair of scis- 'sors and the operation is repeated. The bundles thus obtained are employed for lit-ting up the lamp under the following conditions:

As shown vby Fig. 2, each bundle is inscrted and secured into the end ofthe central rod fm. this operation being facilitated by melting the glass of the rod end. As readily seenthis operation does away with all the `operations cited above and which did consist in forming a head at the end of the centralv -mains alone and projects in line with the central rod m. The spring a of the pivot rodis'then formed by means of swageshears 'seas .to take the shape shown by Fig. 4. Small glass heads are then deposited by means of a blow pipe on the end of the thin Wires 0 and all that remains to do is to prick into these small heads of glass which are softened by means of the blow pipe, the

hooks made of any suitable ,material and which, as shown byliig. (i, will support the filaments. The operation is then finished.-

1t is readily seen that by operating `in the manner described the work is simplified, that the elasticity of the hooks is increased by the longer level' arm obtained by the omission of the central head and that a strong mechanical soldering is obtained while at thesame time the carbon carriers are electrically insulated from the central support.

Having now fully described my said invention7 what I claim and desire to secure by Letters Patent is:

1. An improved process for manufacturing and fitting up the carriers intended to receive the hooks intended to support the metallic filaments of electric incandescent lamps consisting in uniting` into a bundle the thin wires intended to receive the farrying hooks, as well as a thicker wire, intended to form the spring of the pivot rod of the lamp, soldering together the ends of all said wires, securing the bundle thus obtained to the end of the central rod of the lamp, shortening and folding down' the thin wires intended to receive the hooks forming the spring bend in the said thick central wire and securing the supporting hooks to the end of said thin wires, substantially as and for the purpose set forth.

2. An improved process for manufacturing and fitting up the carriers intended to receive the hooks intended to support the filaments of electric incant'lescent lamps consisting in uniting into a bundle the thin wires intended -to receive the said carrying hooks, as Well as a thicker wire intended to forni the springof the pivot rod of the lamp, soldering togetherthe ends of allsaid wires by means of an electricv arc, securing the bundle thus obtained to the ends of the cendown the said thin wires, formingthe spring f bend in said thick central wire and securing the supporting hooks to the ends of said thin wires, substantially as and for the purpose set forth.

3. An improved process for manufact/un ingv and fitting Aup the carriers intended to receive the hooks for supporting the filaments of electric incandescent lamps, consisting in uniting into a bundle thin Wires intended to.receivev the said supporting hooks, as well as a thicker central Wire intended to form the spring of the pivot rod of the lamp,l soldering together the ends of all said wires, securing the soldered end of the bundle thus obtained into the end of the central rod of the lamp by melting the glass of said end, shortening and folding down the said thin wires, forming the spring bend in said thick central wire, securing a glassheadto the end of each of said Wires and se curing the said supporting hooks into said glass heads by inciting the latter, substantiall y as and for the purpose set forth.

4t. A' machine for carrying out the process described and comprising in combination, a. plurality of pins, a plurality of bobbins' containing thin wire and one central bobbin con` taining thicker wire, all these bobbins being rotatably engaged on said pins, a'funnel carried by a standard, a plurality of tubes earried by' the wall of the large opening of said funnel and adapted to receive the said wires coming from the said bobbins and to convey them toward the narrow opening of said funnel and means forsoldering the free ends of said wires together, substantially as and for the purpose set forth.

A machine f'or carrying outthe process described and comprising in combination a plurality of bobbins containing thin wire and one bobbin containing a thicker wire, means for rotatably carrying the said thick kwire lbobbin in the middle and the said thin wire bobbins around the thickwire one, a funnel carried by a standard, a plurality of tubes carried by the said funnel at its large end and adapted to receive said wires and direct them to the narrow end of said funnel, `a soldering funnel adapted to receive the bundle ofl wiresleaving the first named funnel and connected with one pole of a supply of electric current anda solden ing block connected wit-l1 the otherpole of said current supply, substantially as and for the purpose set forth. i

l In testimony whereof l have hereunto set my hand in presence of two witnesses.

PAUL GABRIEL .lllQl'llll..

W itnesses li. C. Coxn, ERNEST Gannsna'r. 

